Po421

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P0421 – warm up catalytic converter bank 1 efficiency below threshold

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P0421 code: warm up catalyst efficiency below threshold (bank 1)

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Po153 engine code

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Check engine light code PO421

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Código P0421 [OBD2] | Descripción, Causas y Soluciones

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Fugas EVAP II (P0442 / P0445) - YouTube

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CÓDIGO P0421 🟢 Solucionado 🟢 Códigos de avería Eficiencia Catalizador

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HYUNDAI TUCSON CODE P0105, P0106, P0107, P0108, P0109 MANIFOLD AIR

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Causes and Fixes P0421 Code: Warm Up Catalyst Efficiency Below

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